How to Change Column Name in DataGridView in Runtime

[kashifabbasi786]

I want to change the DataGridView Heading on run time by giving in textbox.


how i will do this,plz help me

Thnx

[kashifabbasi786]

HI,

I want to change the columnName of DataGridView on Runtime,The datasource of DataGridView is DataTable which i fil from DataBase,

i does not want to change the name of column in query.


Plz reply

[MrMancunian]

Can you post a piece of code in which you initiate the gridview? Furthermore, it would be nice if you told us what language you are using...

[Plater]

All the columns in the DataGridView have a HeaderText Property which you can set to a different string for display purposes.
All thought it is recomended to have the correct query in the first place

[AlmightyJu]

If you mean in VB.NET then its

DataGrid.Column s(0).HeaderText = MyTextBox.Text

and use that wherever you need to.

hope it helps

[Plater]

THREADS MERGED.
Please do not double post your questions. It is against the posting guidelines.

MODERATOR

[jrff9173]

Just figured it out.

DataGridView1.C olumns(DataGrid View1.SelectedC olumns.ToString ).HeaderText = TextBox2.Text

Where:

Datagridview1 is your datagridview control
and Textbox2 is your Control to name the column


@AlmightyJu
That only lets you name the first column

EDIT: Code does not work. Please reply telling me where I went wrong

[Plater]

If you have a valid column selected, setting the HeaderText property will change its visual style.
The code you used had no error checking, which is very bad form.

[Frinavale]

@jrff9173
You probably went wrong where you are setting the HeaderText.
I'm not sure what you are trying to do but if the TextBox2.Text does not have any Text in it you could be referring to Null/Nothing which will throw a NullException error.

Or You may have gone wrong accessing your column....does the following column exist?

DataGridView1.C olumns(DataGrid View1.SelectedC olumns.ToString )

Actually it's more likely that this is your problem.
I'm pretty sure that DataGridView1.S electedColumns. ToString will return you "DataGridViewCo lumnCollection" .

In all likelihood you do not have a column named "DataGridViewCo lumnCollection" so when you try to set the HeaderText of this non-existent column you are getting a NullReferenceEx ception.

You probably want something like the following:

Dim newHeaderText As String = IIf(String.IsNullOrEmpty(TextBox2.Text), "", TextBox2.Text)
 
If DataGridView1.SelectedColumns IsNot Nothing AndAlso DataGridView1.SelectedColumns.Count > 0 Then
  For Each selectedColumn As DataGridViewColumn In DataGridView1.SelectedColumns
    selectedColumn.HeaderText = newHeaderText
  Next
End If

-Frinny