I have tried several different methods of getting a datagrid to fill with
information. Below is the code I'm now using. When viewed in the browser and
the text box filled with a parameter value (i.e. CA for Calif), the datagrids
header is displayed when the button is clicked, but no data is displayed.
I used SQL Profiler and can see that the query comes across with the
parameter, and if I take that query string and use it exactly in Query
Analyzer it executes and displays the data I expect. I just can't seem to get
the datagrid to display data.
What am I missing?
Public Class WebForm1
Inherits System.Web.UI.P age
Dim state As String
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()
Me.sqlConn = New System.Data.Sql Client.SqlConne ction
Me.sqlDA1 = New System.Data.Sql Client.SqlDataA dapter
Me.SqlSelectCom mand1 = New System.Data.Sql Client.SqlComma nd
Me.Ds11 = New TestPubs.ds1
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).Beg inInit()
'
'sqlConn
'
Me.sqlConn.Conn ectionString = "workstatio n id=DOTSW27182;p acket
size=4096;user id=xxx;source=d otswapps;pe" & _
"rsist security info=True;initi al catalog=pubs;pa ssword=xxx"
'
'sqlDA1
'
Me.sqlDA1.Selec tCommand = Me.SqlSelectCom mand1
Me.sqlDA1.Table Mappings.AddRan ge(New
System.Data.Com mon.DataTableMa pping() {New
System.Data.Com mon.DataTableMa pping("Table", "authors", New
System.Data.Com mon.DataColumnM apping() {New
System.Data.Com mon.DataColumnM apping("au_id", "au_id"), New
System.Data.Com mon.DataColumnM apping("au_lnam e", "au_lname") , New
System.Data.Com mon.DataColumnM apping("au_fnam e", "au_fname") , New
System.Data.Com mon.DataColumnM apping("city", "city"), New
System.Data.Com mon.DataColumnM apping("state", "state")})} )
'
'SqlSelectComma nd1
'
Me.SqlSelectCom mand1.CommandTe xt = "SELECT au_id, au_lname,
au_fname, city, state FROM authors WHERE (state = @st)"
Me.SqlSelectCom mand1.Connectio n = Me.sqlConn
Me.SqlSelectCom mand1.Parameter s.Add(New
System.Data.Sql Client.SqlParam eter("@st", System.Data.Sql DbType.VarChar, 2))
'
'Ds11
'
Me.Ds11.DataSet Name = "ds1"
Me.Ds11.Locale = New System.Globaliz ation.CultureIn fo("en-US")
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).End Init()
End Sub
Protected WithEvents tbState As System.Web.UI.W ebControls.Text Box
Protected WithEvents btnSubmit As System.Web.UI.W ebControls.Butt on
Protected WithEvents sqlConn As System.Data.Sql Client.SqlConne ction
Protected WithEvents sqlDA1 As System.Data.Sql Client.SqlDataA dapter
Protected WithEvents SqlSelectComman d1 As System.Data.Sql Client.SqlComma nd
Protected WithEvents Ds11 As TestPubs.ds1
Protected WithEvents dg1 As System.Web.UI.W ebControls.Data Grid
Protected WithEvents RequiredFieldVa lidator1 As
System.Web.UI.W ebControls.Requ iredFieldValida tor
Protected WithEvents ValidationSumma ry1 As
System.Web.UI.W ebControls.Vali dationSummary
'NOTE: The following placeholder declaration is required by the Web Form
Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub
Private Sub btnSubmit_Click (ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles btnSubmit.Click
Try
Me.sqlConn.Open ()
sqlDA1.SelectCo mmand.Parameter s("@st").Valu e = tbState.Text
DataBind()
dg1.DataBind()
sqlDA1.Fill(Ds1 1, "Customers" )
Me.sqlConn.Clos e()
' End If
' )
Catch
'ex As Exception
'Console.WriteL ine = ex.Message.ToSt ring
End Try
'Me.SqlSelectCo mmand1.Paramete rs("@St").Valu e = 'CA'
'Me.SqlSelectCo mmand1.ExecuteR eader()
'Me.sqlDA1.Fill (Ds11)
'Me.sqlConn.Clo se()
End Sub
End Class
6  1610 
where is the DataSource set??
try this
dg1.DataSource = Ds11
"JeffB" wrote: I have tried several different methods of getting a datagrid to fill with
information. Below is the code I'm now using. When viewed in the browser and
the text box filled with a parameter value (i.e. CA for Calif), the datagrids
header is displayed when the button is clicked, but no data is displayed.
I used SQL Profiler and can see that the query comes across with the
parameter, and if I take that query string and use it exactly in Query
Analyzer it executes and displays the data I expect. I just can't seem to get
the datagrid to display data.
What am I missing?
Public Class WebForm1
Inherits System.Web.UI.P age
Dim state As String
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()
Me.sqlConn = New System.Data.Sql Client.SqlConne ction
Me.sqlDA1 = New System.Data.Sql Client.SqlDataA dapter
Me.SqlSelectCom mand1 = New System.Data.Sql Client.SqlComma nd
Me.Ds11 = New TestPubs.ds1
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).Beg inInit()
'
'sqlConn
'
Me.sqlConn.Conn ectionString = "workstatio n id=DOTSW27182;p acket
size=4096;user id=xxx;source=d otswapps;pe" & _
"rsist security info=True;initi al catalog=pubs;pa ssword=xxx"
'
'sqlDA1
'
Me.sqlDA1.Selec tCommand = Me.SqlSelectCom mand1
Me.sqlDA1.Table Mappings.AddRan ge(New
System.Data.Com mon.DataTableMa pping() {New
System.Data.Com mon.DataTableMa pping("Table", "authors", New
System.Data.Com mon.DataColumnM apping() {New
System.Data.Com mon.DataColumnM apping("au_id", "au_id"), New
System.Data.Com mon.DataColumnM apping("au_lnam e", "au_lname") , New
System.Data.Com mon.DataColumnM apping("au_fnam e", "au_fname") , New
System.Data.Com mon.DataColumnM apping("city", "city"), New
System.Data.Com mon.DataColumnM apping("state", "state")})} )
'
'SqlSelectComma nd1
'
Me.SqlSelectCom mand1.CommandTe xt = "SELECT au_id, au_lname,
au_fname, city, state FROM authors WHERE (state = @st)"
Me.SqlSelectCom mand1.Connectio n = Me.sqlConn
Me.SqlSelectCom mand1.Parameter s.Add(New
System.Data.Sql Client.SqlParam eter("@st", System.Data.Sql DbType.VarChar, 2))
'
'Ds11
'
Me.Ds11.DataSet Name = "ds1"
Me.Ds11.Locale = New System.Globaliz ation.CultureIn fo("en-US")
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).End Init()
End Sub
Protected WithEvents tbState As System.Web.UI.W ebControls.Text Box
Protected WithEvents btnSubmit As System.Web.UI.W ebControls.Butt on
Protected WithEvents sqlConn As System.Data.Sql Client.SqlConne ction
Protected WithEvents sqlDA1 As System.Data.Sql Client.SqlDataA dapter
Protected WithEvents SqlSelectComman d1 As System.Data.Sql Client.SqlComma nd
Protected WithEvents Ds11 As TestPubs.ds1
Protected WithEvents dg1 As System.Web.UI.W ebControls.Data Grid
Protected WithEvents RequiredFieldVa lidator1 As
System.Web.UI.W ebControls.Requ iredFieldValida tor
Protected WithEvents ValidationSumma ry1 As
System.Web.UI.W ebControls.Vali dationSummary
'NOTE: The following placeholder declaration is required by the Web Form
Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub
Private Sub btnSubmit_Click (ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles btnSubmit.Click
Try
Me.sqlConn.Open ()
sqlDA1.SelectCo mmand.Parameter s("@st").Valu e = tbState.Text
DataBind()
dg1.DataBind()
sqlDA1.Fill(Ds1 1, "Customers" )
Me.sqlConn.Clos e()
' End If
' )
Catch
'ex As Exception
'Console.WriteL ine = ex.Message.ToSt ring
End Try
'Me.SqlSelectCo mmand1.Paramete rs("@St").Valu e = 'CA'
'Me.SqlSelectCo mmand1.ExecuteR eader()
'Me.sqlDA1.Fill (Ds11)
'Me.sqlConn.Clo se()
End Sub
End Class
To fill datagrid, there are following steps:
1. Create a new DataAdapter:
Although there are several different ways, simplest
way is:
Dim dap As New SqlDataAdapter( QueryString,
ConnectionStrin g)
2. Fill data to a DataSet or DataTable:
Dim ds As New DataSet();
dap.Fill(ds)
3. Fill Datagrid with data
dg1.DataSource = ds
dg1.DataBind()
So check your steps to see if you missed any step.
Elton Wang -----Original Message-----
I have tried several different methods of getting a
datagrid to fill withinformation. Below is the code I'm now using. When viewed
in the browser andthe text box filled with a parameter value (i.e. CA for
Calif), the datagridsheader is displayed when the button is clicked, but no
data is displayed.I used SQL Profiler and can see that the query comes
across with theparameter, and if I take that query string and use it
exactly in QueryAnalyzer it executes and displays the data I expect. I
just can't seem to getthe datagrid to display data.
What am I missing?
Public Class WebForm1
Inherits System.Web.UI.P age
Dim state As String
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private
SubInitializeComp onent()
Me.sqlConn = New
System.Data.Sql Client.SqlConne ction Me.sqlDA1 = New
System.Data.Sql Client.SqlDataA dapter Me.SqlSelectCom mand1 = New
System.Data.Sql Client.SqlComma nd Me.Ds11 = New TestPubs.ds1
CType(Me.Ds11,
System.Componen tModel.ISupport Initialize).Beg inInit() '
'sqlConn
'
Me.sqlConn.Conn ectionString = "workstatio n
id=DOTSW27182;p acketsize=4096;us er id=xxx;source=d otswapps;pe" & _
"rsist security info=True;initi al
catalog=pubs;pa ssword=xxx" '
'sqlDA1
'
Me.sqlDA1.Selec tCommand = Me.SqlSelectCom mand1
Me.sqlDA1.Table Mappings.AddRan ge(New
System.Data.Co mmon.DataTableM apping() {New
System.Data.Co mmon.DataTableM apping("Table", "authors",
NewSystem.Data.Co mmon.DataColumn Mapping() {New
System.Data.Co mmon.DataColumn Mapping("au_id" , "au_id"),
NewSystem.Data.Co mmon.DataColumn Mapping
("au_lname", "au_lname") , NewSystem.Data.Co mmon.DataColumn Mapping
("au_fname", "au_fname") , NewSystem.Data.Co mmon.DataColumn Mapping("city", "city"), New
System.Data.Co mmon.DataColumn Mapping("state" , "state")})} )
'
'SqlSelectComma nd1
'
Me.SqlSelectCom mand1.CommandTe xt = "SELECT au_id,
au_lname,au_fname, city, state FROM authors WHERE (state = @st)"
Me.SqlSelectCom mand1.Connectio n = Me.sqlConn
Me.SqlSelectCom mand1.Parameter s.Add(New
System.Data.Sq lClient.SqlPara meter("@st",
System.Data.Sql DbType.VarChar, 2)) '
'Ds11
'
Me.Ds11.DataSet Name = "ds1"
Me.Ds11.Locale = New
System.Globaliz ation.CultureIn fo("en-US") CType(Me.Ds11,
System.Componen tModel.ISupport Initialize).End Init()
End Sub
Protected WithEvents tbState As
System.Web.UI.W ebControls.Text Box Protected WithEvents btnSubmit As
System.Web.UI.W ebControls.Butt on Protected WithEvents sqlConn As
System.Data.Sql Client.SqlConne ction Protected WithEvents sqlDA1 As
System.Data.Sql Client.SqlDataA dapter Protected WithEvents SqlSelectComman d1 As
System.Data.Sql Client.SqlComma nd Protected WithEvents Ds11 As TestPubs.ds1
Protected WithEvents dg1 As
System.Web.UI.W ebControls.Data Grid Protected WithEvents RequiredFieldVa lidator1 As
System.Web.UI. WebControls.Req uiredFieldValid ator
Protected WithEvents ValidationSumma ry1 As
System.Web.UI. WebControls.Val idationSummary
'NOTE: The following placeholder declaration is
required by the Web FormDesigner.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As
System.Object
Private Sub Page_Init(ByVal sender As System.Object,
ByVal e AsSystem.EventAr gs) Handles MyBase.Init
'CODEGEN: This method call is required by the Web
Form Designer 'Do not modify it using the code editor.
InitializeCompo nent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object,
ByVal e AsSystem.EventAr gs) Handles MyBase.Load
'Put user code to initialize the page here
End Sub
Private Sub btnSubmit_Click (ByVal sender As
System.Object, ByVal e AsSystem.EventAr gs) Handles btnSubmit.Click
Try
Me.sqlConn.Open ()
sqlDA1.SelectCo mmand.Parameter s("@st").Valu e
= tbState.Text DataBind()
dg1.DataBind()
sqlDA1.Fill(Ds1 1, "Customers" )
Me.sqlConn.Clos e()
' End If
' )
Catch
'ex As Exception
'Console.WriteL ine = ex.Message.ToSt ring
End Try
'Me.SqlSelectCo mmand1.Paramete rs("@St").Valu e
= 'CA' 'Me.SqlSelectCo mmand1.ExecuteR eader()
'Me.sqlDA1.Fill (Ds11)
'Me.sqlConn.Clo se()
End Sub
End Class
.
Vinay:
I tried both your suggestion and "dg1.DataSo urce = Ds11.Tables("au thors")
and still get the same thing. The datagrid headers and no data.
Jeff
"vinay" wrote: where is the DataSource set??
try this
dg1.DataSource = Ds11
"JeffB" wrote:
I have tried several different methods of getting a datagrid to fill with
information. Below is the code I'm now using. When viewed in the browser and
the text box filled with a parameter value (i.e. CA for Calif), the datagrids
header is displayed when the button is clicked, but no data is displayed.
I used SQL Profiler and can see that the query comes across with the
parameter, and if I take that query string and use it exactly in Query
Analyzer it executes and displays the data I expect. I just can't seem to get
the datagrid to display data.
What am I missing?
Public Class WebForm1
Inherits System.Web.UI.P age
Dim state As String
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()
Me.sqlConn = New System.Data.Sql Client.SqlConne ction
Me.sqlDA1 = New System.Data.Sql Client.SqlDataA dapter
Me.SqlSelectCom mand1 = New System.Data.Sql Client.SqlComma nd
Me.Ds11 = New TestPubs.ds1
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).Beg inInit()
'
'sqlConn
'
Me.sqlConn.Conn ectionString = "workstatio n id=DOTSW27182;p acket
size=4096;user id=xxx;source=d otswapps;pe" & _
"rsist security info=True;initi al catalog=pubs;pa ssword=xxx"
'
'sqlDA1
'
Me.sqlDA1.Selec tCommand = Me.SqlSelectCom mand1
Me.sqlDA1.Table Mappings.AddRan ge(New
System.Data.Com mon.DataTableMa pping() {New
System.Data.Com mon.DataTableMa pping("Table", "authors", New
System.Data.Com mon.DataColumnM apping() {New
System.Data.Com mon.DataColumnM apping("au_id", "au_id"), New
System.Data.Com mon.DataColumnM apping("au_lnam e", "au_lname") , New
System.Data.Com mon.DataColumnM apping("au_fnam e", "au_fname") , New
System.Data.Com mon.DataColumnM apping("city", "city"), New
System.Data.Com mon.DataColumnM apping("state", "state")})} )
'
'SqlSelectComma nd1
'
Me.SqlSelectCom mand1.CommandTe xt = "SELECT au_id, au_lname,
au_fname, city, state FROM authors WHERE (state = @st)"
Me.SqlSelectCom mand1.Connectio n = Me.sqlConn
Me.SqlSelectCom mand1.Parameter s.Add(New
System.Data.Sql Client.SqlParam eter("@st", System.Data.Sql DbType.VarChar, 2))
'
'Ds11
'
Me.Ds11.DataSet Name = "ds1"
Me.Ds11.Locale = New System.Globaliz ation.CultureIn fo("en-US")
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).End Init()
End Sub
Protected WithEvents tbState As System.Web.UI.W ebControls.Text Box
Protected WithEvents btnSubmit As System.Web.UI.W ebControls.Butt on
Protected WithEvents sqlConn As System.Data.Sql Client.SqlConne ction
Protected WithEvents sqlDA1 As System.Data.Sql Client.SqlDataA dapter
Protected WithEvents SqlSelectComman d1 As System.Data.Sql Client.SqlComma nd
Protected WithEvents Ds11 As TestPubs.ds1
Protected WithEvents dg1 As System.Web.UI.W ebControls.Data Grid
Protected WithEvents RequiredFieldVa lidator1 As
System.Web.UI.W ebControls.Requ iredFieldValida tor
Protected WithEvents ValidationSumma ry1 As
System.Web.UI.W ebControls.Vali dationSummary
'NOTE: The following placeholder declaration is required by the Web Form
Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub
Private Sub btnSubmit_Click (ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles btnSubmit.Click
Try
Me.sqlConn.Open ()
sqlDA1.SelectCo mmand.Parameter s("@st").Valu e = tbState.Text
DataBind()
dg1.DataBind()
sqlDA1.Fill(Ds1 1, "Customers" )
Me.sqlConn.Clos e()
' End If
' )
Catch
'ex As Exception
'Console.WriteL ine = ex.Message.ToSt ring
End Try
'Me.SqlSelectCo mmand1.Paramete rs("@St").Valu e = 'CA'
'Me.SqlSelectCo mmand1.ExecuteR eader()
'Me.sqlDA1.Fill (Ds11)
'Me.sqlConn.Clo se()
End Sub
End Class
Vinay:
Thanks, got it now.
"vinay" wrote: where is the DataSource set??
try this
dg1.DataSource = Ds11
"JeffB" wrote:
I have tried several different methods of getting a datagrid to fill with
information. Below is the code I'm now using. When viewed in the browser and
the text box filled with a parameter value (i.e. CA for Calif), the datagrids
header is displayed when the button is clicked, but no data is displayed.
I used SQL Profiler and can see that the query comes across with the
parameter, and if I take that query string and use it exactly in Query
Analyzer it executes and displays the data I expect. I just can't seem to get
the datagrid to display data.
What am I missing?
Public Class WebForm1
Inherits System.Web.UI.P age
Dim state As String
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()
Me.sqlConn = New System.Data.Sql Client.SqlConne ction
Me.sqlDA1 = New System.Data.Sql Client.SqlDataA dapter
Me.SqlSelectCom mand1 = New System.Data.Sql Client.SqlComma nd
Me.Ds11 = New TestPubs.ds1
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).Beg inInit()
'
'sqlConn
'
Me.sqlConn.Conn ectionString = "workstatio n id=DOTSW27182;p acket
size=4096;user id=xxx;source=d otswapps;pe" & _
"rsist security info=True;initi al catalog=pubs;pa ssword=xxx"
'
'sqlDA1
'
Me.sqlDA1.Selec tCommand = Me.SqlSelectCom mand1
Me.sqlDA1.Table Mappings.AddRan ge(New
System.Data.Com mon.DataTableMa pping() {New
System.Data.Com mon.DataTableMa pping("Table", "authors", New
System.Data.Com mon.DataColumnM apping() {New
System.Data.Com mon.DataColumnM apping("au_id", "au_id"), New
System.Data.Com mon.DataColumnM apping("au_lnam e", "au_lname") , New
System.Data.Com mon.DataColumnM apping("au_fnam e", "au_fname") , New
System.Data.Com mon.DataColumnM apping("city", "city"), New
System.Data.Com mon.DataColumnM apping("state", "state")})} )
'
'SqlSelectComma nd1
'
Me.SqlSelectCom mand1.CommandTe xt = "SELECT au_id, au_lname,
au_fname, city, state FROM authors WHERE (state = @st)"
Me.SqlSelectCom mand1.Connectio n = Me.sqlConn
Me.SqlSelectCom mand1.Parameter s.Add(New
System.Data.Sql Client.SqlParam eter("@st", System.Data.Sql DbType.VarChar, 2))
'
'Ds11
'
Me.Ds11.DataSet Name = "ds1"
Me.Ds11.Locale = New System.Globaliz ation.CultureIn fo("en-US")
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).End Init()
End Sub
Protected WithEvents tbState As System.Web.UI.W ebControls.Text Box
Protected WithEvents btnSubmit As System.Web.UI.W ebControls.Butt on
Protected WithEvents sqlConn As System.Data.Sql Client.SqlConne ction
Protected WithEvents sqlDA1 As System.Data.Sql Client.SqlDataA dapter
Protected WithEvents SqlSelectComman d1 As System.Data.Sql Client.SqlComma nd
Protected WithEvents Ds11 As TestPubs.ds1
Protected WithEvents dg1 As System.Web.UI.W ebControls.Data Grid
Protected WithEvents RequiredFieldVa lidator1 As
System.Web.UI.W ebControls.Requ iredFieldValida tor
Protected WithEvents ValidationSumma ry1 As
System.Web.UI.W ebControls.Vali dationSummary
'NOTE: The following placeholder declaration is required by the Web Form
Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub
Private Sub btnSubmit_Click (ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles btnSubmit.Click
Try
Me.sqlConn.Open ()
sqlDA1.SelectCo mmand.Parameter s("@st").Valu e = tbState.Text
DataBind()
dg1.DataBind()
sqlDA1.Fill(Ds1 1, "Customers" )
Me.sqlConn.Clos e()
' End If
' )
Catch
'ex As Exception
'Console.WriteL ine = ex.Message.ToSt ring
End Try
'Me.SqlSelectCo mmand1.Paramete rs("@St").Valu e = 'CA'
'Me.SqlSelectCo mmand1.ExecuteR eader()
'Me.sqlDA1.Fill (Ds11)
'Me.sqlConn.Clo se()
End Sub
End Class
Vinay:
I now see why I didn't add the line you have listed below. This information
is entered into the properties of the datagrid on the WebForm1.aspx page.
There is a place for DataSource, DataMember, and DataKeyField. I had this
same information there. Why wasn't it being used.
I went back and tested, and took these parameters out of the properties and
my datagrid in the IDE goes back to a default datagrid with column names 0,
1, and 2, but when I view the page in the browser, it works and displays
properly.
Do you know why, or can some tell me why?
Thanks again.
"vinay" wrote: where is the DataSource set??
try this
dg1.DataSource = Ds11
"JeffB" wrote:
I have tried several different methods of getting a datagrid to fill with
information. Below is the code I'm now using. When viewed in the browser and
the text box filled with a parameter value (i.e. CA for Calif), the datagrids
header is displayed when the button is clicked, but no data is displayed.
I used SQL Profiler and can see that the query comes across with the
parameter, and if I take that query string and use it exactly in Query
Analyzer it executes and displays the data I expect. I just can't seem to get
the datagrid to display data.
What am I missing?
Public Class WebForm1
Inherits System.Web.UI.P age
Dim state As String
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()
Me.sqlConn = New System.Data.Sql Client.SqlConne ction
Me.sqlDA1 = New System.Data.Sql Client.SqlDataA dapter
Me.SqlSelectCom mand1 = New System.Data.Sql Client.SqlComma nd
Me.Ds11 = New TestPubs.ds1
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).Beg inInit()
'
'sqlConn
'
Me.sqlConn.Conn ectionString = "workstatio n id=DOTSW27182;p acket
size=4096;user id=xxx;source=d otswapps;pe" & _
"rsist security info=True;initi al catalog=pubs;pa ssword=xxx"
'
'sqlDA1
'
Me.sqlDA1.Selec tCommand = Me.SqlSelectCom mand1
Me.sqlDA1.Table Mappings.AddRan ge(New
System.Data.Com mon.DataTableMa pping() {New
System.Data.Com mon.DataTableMa pping("Table", "authors", New
System.Data.Com mon.DataColumnM apping() {New
System.Data.Com mon.DataColumnM apping("au_id", "au_id"), New
System.Data.Com mon.DataColumnM apping("au_lnam e", "au_lname") , New
System.Data.Com mon.DataColumnM apping("au_fnam e", "au_fname") , New
System.Data.Com mon.DataColumnM apping("city", "city"), New
System.Data.Com mon.DataColumnM apping("state", "state")})} )
'
'SqlSelectComma nd1
'
Me.SqlSelectCom mand1.CommandTe xt = "SELECT au_id, au_lname,
au_fname, city, state FROM authors WHERE (state = @st)"
Me.SqlSelectCom mand1.Connectio n = Me.sqlConn
Me.SqlSelectCom mand1.Parameter s.Add(New
System.Data.Sql Client.SqlParam eter("@st", System.Data.Sql DbType.VarChar, 2))
'
'Ds11
'
Me.Ds11.DataSet Name = "ds1"
Me.Ds11.Locale = New System.Globaliz ation.CultureIn fo("en-US")
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).End Init()
End Sub
Protected WithEvents tbState As System.Web.UI.W ebControls.Text Box
Protected WithEvents btnSubmit As System.Web.UI.W ebControls.Butt on
Protected WithEvents sqlConn As System.Data.Sql Client.SqlConne ction
Protected WithEvents sqlDA1 As System.Data.Sql Client.SqlDataA dapter
Protected WithEvents SqlSelectComman d1 As System.Data.Sql Client.SqlComma nd
Protected WithEvents Ds11 As TestPubs.ds1
Protected WithEvents dg1 As System.Web.UI.W ebControls.Data Grid
Protected WithEvents RequiredFieldVa lidator1 As
System.Web.UI.W ebControls.Requ iredFieldValida tor
Protected WithEvents ValidationSumma ry1 As
System.Web.UI.W ebControls.Vali dationSummary
'NOTE: The following placeholder declaration is required by the Web Form
Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub
Private Sub btnSubmit_Click (ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles btnSubmit.Click
Try
Me.sqlConn.Open ()
sqlDA1.SelectCo mmand.Parameter s("@st").Valu e = tbState.Text
DataBind()
dg1.DataBind()
sqlDA1.Fill(Ds1 1, "Customers" )
Me.sqlConn.Clos e()
' End If
' )
Catch
'ex As Exception
'Console.WriteL ine = ex.Message.ToSt ring
End Try
'Me.SqlSelectCo mmand1.Paramete rs("@St").Valu e = 'CA'
'Me.SqlSelectCo mmand1.ExecuteR eader()
'Me.sqlDA1.Fill (Ds11)
'Me.sqlConn.Clo se()
End Sub
End Class
Pls check the order
sqlDA1.Fill(Ds1 1, "Customers" )
dg1.DataSource = Ds11
dg1.DataBind()
"JeffB" wrote: Vinay:
I now see why I didn't add the line you have listed below. This information
is entered into the properties of the datagrid on the WebForm1.aspx page.
There is a place for DataSource, DataMember, and DataKeyField. I had this
same information there. Why wasn't it being used.
I went back and tested, and took these parameters out of the properties and
my datagrid in the IDE goes back to a default datagrid with column names 0,
1, and 2, but when I view the page in the browser, it works and displays
properly.
Do you know why, or can some tell me why?
Thanks again.
"vinay" wrote:
where is the DataSource set??
try this
dg1.DataSource = Ds11
"JeffB" wrote:
I have tried several different methods of getting a datagrid to fill with
information. Below is the code I'm now using. When viewed in the browser and
the text box filled with a parameter value (i.e. CA for Calif), the datagrids
header is displayed when the button is clicked, but no data is displayed.
I used SQL Profiler and can see that the query comes across with the
parameter, and if I take that query string and use it exactly in Query
Analyzer it executes and displays the data I expect. I just can't seem to get
the datagrid to display data.
What am I missing?
Public Class WebForm1
Inherits System.Web.UI.P age
Dim state As String
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()
Me.sqlConn = New System.Data.Sql Client.SqlConne ction
Me.sqlDA1 = New System.Data.Sql Client.SqlDataA dapter
Me.SqlSelectCom mand1 = New System.Data.Sql Client.SqlComma nd
Me.Ds11 = New TestPubs.ds1
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).Beg inInit()
'
'sqlConn
'
Me.sqlConn.Conn ectionString = "workstatio n id=DOTSW27182;p acket
size=4096;user id=xxx;source=d otswapps;pe" & _
"rsist security info=True;initi al catalog=pubs;pa ssword=xxx"
'
'sqlDA1
'
Me.sqlDA1.Selec tCommand = Me.SqlSelectCom mand1
Me.sqlDA1.Table Mappings.AddRan ge(New
System.Data.Com mon.DataTableMa pping() {New
System.Data.Com mon.DataTableMa pping("Table", "authors", New
System.Data.Com mon.DataColumnM apping() {New
System.Data.Com mon.DataColumnM apping("au_id", "au_id"), New
System.Data.Com mon.DataColumnM apping("au_lnam e", "au_lname") , New
System.Data.Com mon.DataColumnM apping("au_fnam e", "au_fname") , New
System.Data.Com mon.DataColumnM apping("city", "city"), New
System.Data.Com mon.DataColumnM apping("state", "state")})} )
'
'SqlSelectComma nd1
'
Me.SqlSelectCom mand1.CommandTe xt = "SELECT au_id, au_lname,
au_fname, city, state FROM authors WHERE (state = @st)"
Me.SqlSelectCom mand1.Connectio n = Me.sqlConn
Me.SqlSelectCom mand1.Parameter s.Add(New
System.Data.Sql Client.SqlParam eter("@st", System.Data.Sql DbType.VarChar, 2))
'
'Ds11
'
Me.Ds11.DataSet Name = "ds1"
Me.Ds11.Locale = New System.Globaliz ation.CultureIn fo("en-US")
CType(Me.Ds11, System.Componen tModel.ISupport Initialize).End Init()
End Sub
Protected WithEvents tbState As System.Web.UI.W ebControls.Text Box
Protected WithEvents btnSubmit As System.Web.UI.W ebControls.Butt on
Protected WithEvents sqlConn As System.Data.Sql Client.SqlConne ction
Protected WithEvents sqlDA1 As System.Data.Sql Client.SqlDataA dapter
Protected WithEvents SqlSelectComman d1 As System.Data.Sql Client.SqlComma nd
Protected WithEvents Ds11 As TestPubs.ds1
Protected WithEvents dg1 As System.Web.UI.W ebControls.Data Grid
Protected WithEvents RequiredFieldVa lidator1 As
System.Web.UI.W ebControls.Requ iredFieldValida tor
Protected WithEvents ValidationSumma ry1 As
System.Web.UI.W ebControls.Vali dationSummary
'NOTE: The following placeholder declaration is required by the Web Form
Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub
Private Sub btnSubmit_Click (ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles btnSubmit.Click
Try
Me.sqlConn.Open ()
sqlDA1.SelectCo mmand.Parameter s("@st").Valu e = tbState.Text
DataBind()
dg1.DataBind()
sqlDA1.Fill(Ds1 1, "Customers" )
Me.sqlConn.Clos e()
' End If
' )
Catch
'ex As Exception
'Console.WriteL ine = ex.Message.ToSt ring
End Try
'Me.SqlSelectCo mmand1.Paramete rs("@St").Valu e = 'CA'
'Me.SqlSelectCo mmand1.ExecuteR eader()
'Me.sqlDA1.Fill (Ds11)
'Me.sqlConn.Clo se()
End Sub
End Class This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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