OnTextChanged

[huzz]

I have a TextBox field as shown below

<asp:TextBox id="txtIssueTo " runat="server" OnTextChanged=" UserExist"
AutoPostBack="t rue" Text="UserName" ></asp:TextBox>

The UserExist method takes the txtIssueTo value and checks if the user exist
in the database.... in the UserExist method i keep getting this error message:

Object reference not set to an instance of an object.
string strUserName = txtIssueTo.Text ;

Here is my method

public void UserExist(objec t sender, System.EventArg s e)
{

string strUserName = txtIssueTo.Text ;
bool UserExist = ad.UserExist(st rUserName);
if(UserExist==f alse)
{
lblUserNotFound .Text = "User not found";
}

}

Any suggestions? many thanks in advance.

[Michael Groeger]

Try to find out what object does not exist. Is it your TextBox or the object
referred as "ad"?

"huzz" <hu**@discussio ns.microsoft.co m> schrieb im Newsbeitrag
news:A9******** *************** ***********@mic rosoft.com...

I have a TextBox field as shown below

<asp:TextBox id="txtIssueTo " runat="server" OnTextChanged=" UserExist"
AutoPostBack="t rue" Text="UserName" ></asp:TextBox>

The UserExist method takes the txtIssueTo value and checks if the user exist in the database.... in the UserExist method i keep getting this error message:
Object reference not set to an instance of an object.
string strUserName = txtIssueTo.Text ;

Here is my method

public void UserExist(objec t sender, System.EventArg s e)
{

string strUserName = txtIssueTo.Text ;
bool UserExist = ad.UserExist(st rUserName);
if(UserExist==f alse)
{
lblUserNotFound .Text = "User not found";
}

}

Any suggestions? many thanks in advance.

[huzz]

I found some help on the net.. here is my code .. i can't seem to find the
label lblUserNotFound .. i can get the Textbox value now.

any idea?

public void UserExist(objec t sender, System.EventArg s e)
{
RepeaterItem Item =
(RepeaterItem)( ((System.Web.UI .Control)sender ).NamingContain er);
int nID = Item.ItemIndex;
TextBox txtIssueTo =
(TextBox)rptIss ueLaptop.Items[nID].FindControl("t xtIssueTo");
Label lblUserNotFound =
(Label)rptIssue Laptop.Items[nID].FindControl("l blUserNotFound" );
bool UserExist = ad.UserExist(tx tIssueTo.Text);
if(UserExist==f alse)
{
lblUserNotFound .Text = "User not found";
}

}
"Michael Groeger" wrote:

Try to find out what object does not exist. Is it your TextBox or the object
referred as "ad"?

"huzz" <hu**@discussio ns.microsoft.co m> schrieb im Newsbeitrag
news:A9******** *************** ***********@mic rosoft.com...

I have a TextBox field as shown below

<asp:TextBox id="txtIssueTo " runat="server" OnTextChanged=" UserExist"
AutoPostBack="t rue" Text="UserName" ></asp:TextBox>

The UserExist method takes the txtIssueTo value and checks if the user

exist

in the database.... in the UserExist method i keep getting this error

message:

Object reference not set to an instance of an object.
string strUserName = txtIssueTo.Text ;

Here is my method

public void UserExist(objec t sender, System.EventArg s e)
{

string strUserName = txtIssueTo.Text ;
bool UserExist = ad.UserExist(st rUserName);
if(UserExist==f alse)
{
lblUserNotFound .Text = "User not found";
}

}

Any suggestions? many thanks in advance.