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How to get different text for each button in same column dynamically in datagridview

I created a user control which has datagridview. Then I added row and column dynamically from textfile in datagridview.
My problem is I need column which has buttons in each row. In first row, the text of button is 'Test1' and in second row 'Test2' not the same text.
After searched on google I tried this code
var testButton = new DataGridViewButtonColumn();
testButton.Name = "Test";
testButton.HeaderText = "Test";
testButton.UseColumnTextForButtonValue = true;
testButton.Text = "Test1";
this.dataGridView1.Columns.Add(testButton);
But it gives me both button text as 'Test1'.

Assuming you are in Windows Forms, you need to add a DataGridViewButtonColumn to your DataGridView - Not directly to the DataTable.
This should occur somewhere after you bind the DataTable to the DataGridView.
Something like this should work:
DataGridViewButtonColumn uninstallButtonColumn = new DataGridViewButtonColumn();
uninstallButtonColumn.Name = "uninstall_column";
uninstallButtonColumn.Text = "Uninstall";
int columnIndex = 2;
if (dataGridViewSoftware.Columns["uninstall_column"] == null)
{
dataGridViewSoftware.Columns.Insert(columnIndex, uninstallButtonColumn);
}
Of course you will have to handle the CellClick event of the grid to do anything with the button.
Add this somewhere in your DataGridView Initialization code
dataGridViewSoftware.CellClick += dataGridViewSoftware_CellClick;
Then create the handler:
private void dataGridViewSoftware_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == dataGridViewSoftware.Columns["uninstall_column"].Index)
{
//Do something with your button.
}
}

//Change the Button text property on a data-bound event
protected void YourDataGridViewId_RowDataBound(object sender, GridViewRowEventArgs e)
{
// finding the button control..`enter code here`.
if (e.Row.RowType == DataControlRowType.DataRow)
{
Button YourbtnVariable = (Button)e.Row.FindControl("YourbuttonID");
YourbtnVariable.Text = "Text"+e.Row.RowIndex+1;
//e.Row.RowIndex+1 will give u index of row every time incremented with 1
}
}

Link button is not being disabled, how to disable link button in grid-view?

I have a Gridview with a link button in the first column. Once the link button is clicked I want to open a window, but I also want to disable the link button.
Not working
Once I click on the link button the window behavior is the expected one. However, the link button is not disabled. Therefore is permitting me to click on it over and over again.
The front end is:
<asp:LinkButton runat="server" ID="lnkbtnView" CommandArgument='<%# Eval("Id")%>' OnCommand="GetViewOnClientClick" >View<br/></asp:LinkButton>
GetviewonClientClick method:
protected void GetViewOnClientClick(object sender, EventArgs e)
{
LinkButton lb = (LinkButton)sender;
GridViewRow row = (GridViewRow)lb.NamingContainer;
if (row != null)
{
int index = row.RowIndex;
LinkButton link = (LinkButton)row.FindControl("lnkbtnView");
link.Enabled = false;
}
}
Why is not working as expected?
That's what I want to solve. I suspect I might have to do a rebinding or something related, but I don't quite understand what is really going on. Therefore, I don't know how to implement it.

I never found the solution to edit the control in that method. What I did instead was to read on the cycles of the grid view events.
https://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview_events(v=vs.110).aspx
If you read the previous link, you'll know that once you click on a record it is going to trigger a call to the RowDataBound event. Therefore; in the RowDataBound event you'll have access to the control and apply logic to edit the control's properties (such as color, disabled, enabled...).
Therefore, because I have two types of records in this grid view, I needed to store and to make persistent what records were clicked.
This is my fix to keep track of the clicked rows:
protected void gvList_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Header)
{
gvs.SetHeaderArrows(e);
}
if (e.Row.RowType == DataControlRowType.DataRow)
{
int Id = (int)(e.Row.RowIndex);
int? inspID = convert.ToIntQ(DataBinder.Eval(e.Row.DataItem, "InspectionID"));
string rowclicked = string.Format("clickedrow{0}", Id);
if (convert.ToIntQ(Session[rowclicked]) != null)
{
if (Id == Convert.ToInt32(Session[rowclicked]))
{
LinkButton button = (LinkButton) e.Row.FindControl("lnkbtnView");
button.ForeColor = Color.Gray;
button.Enabled = false;
}
else
{
LinkButton button = (LinkButton)e.Row.FindControl("lnkbtnView");
button.ForeColor = Color.DarkBlue;
button.Enabled = true;
}
}

how to get the column index of the gridview

I have two image buttons in the GridView used for selection. They populate the textboxes. What I need is when i click imagebutton "Edit" it should populate the textboxes from the gridview and when the imagebutton "Delete" is pressed it does the same and disbale the textboxes too. The point is am not getting a logic of how to get the column indexes programmatically.
help me out with the condition.
the issue is just with the c# code. Here is the snippet which i have tried:
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
var row = GridView1.SelectedRow;
if (condition)
{
_PropertyTitle.Text = row.Cells[1].Text;
_Address.Text = row.Cells[2].Text;
}
else
{
_PropertyTitle.Text = row.Cells[1].Text;
_PropertyTitle.Enabled = false;
_Address.Text = row.Cells[2].Text;
_Address.Enabled = false;
}
}
}

It is not very clear from question that what you are trying to achieve.But what i got is you want to write specify both image button click separately.
for that you have to use the RowCommand event.
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
}
In this row command event according to CommandName (of button) you can manage the code for two buttons
Refer this link for Rowcommand event row command
One more link

How to replace text in some cells of GridView after data binding?

I have a GridView that is assosiated with database. Here's a data binding:
protected void GridViewProgramms_SelectedIndexChanged(object sender, EventArgs e)
{
int rowIndex = ((GridView) sender).SelectedIndex;
var programid = ((GridView) sender).Rows[rowIndex].Cells[1].Text;
GridViewEx.RowEditing += GridViewEx_RowEditing;
SqlDataSource1.SelectParameters["ID"].DefaultValue = programid;
GridViewEx.DataBind();
ExcersicePanel.Visible = true;
PanelAp.Visible = false;
}
Everything works fine, but I need to change some cells values in GridView after that. I need to rewrite every Cell in the last row. How to do this without affecting the database?

You will need to write your code(To change the cell text) in RowDataBound event of the gridview after data bind
Refer following link for more explanation
Update GridView Column after databinding

protected void GridViewEx_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
label or textbox ddltype = (label or textbox)e.Row.FindControl("id");
ddltype.text="ur text";
}
}

Dynamically added Link Button doesn't fire the on click event on the first click - C#

I am dynamically adding Link Buttons to my Gridview as seen below:
protected void addLinks()
{
foreach (GridViewRow gvr in gvData.Rows)
{
if (gvr.RowType == DataControlRowType.DataRow)
{
string itemNbr = gvr.Cells[1].Text;
LinkButton lb = new LinkButton();
lb.Text = itemNbr;
lb.Click += genericLinkButton_Click;
foreach (Control ctrl in gvr.Cells[1].Controls)
{
gvr.Cells[1].Controls.Remove(ctrl);
}
gvr.Cells[1].Controls.Add(lb);
}
}
}
This addLinks() function is called in my gridview_RowDataBound event and the Page Load event if(isPostPack).
The problem is that when I click the link buttons, the genericLinkButton_Click event does not get fired on my first click. It causes a postback, and then if I click it again, or click one of the other Link Buttons, the genericLinkButton_Click event is fired.
How can I make sure the click event happens on my first click?
Thanks!

My condolences for having to bother with WebForms.
When using Webforms and dynamically creating controls you are required to assign an ID to the created control before adding the control to the tree in order for them to work properly. Otherwise they will have changing ID's during the pagelifecycle resulting in the described behaviour.
private int _runningIndex = 0;
protected void gvData_RowCreated(Object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string itemNbr = e.Row.Cells[1].Text;
LinkButton lb = new LinkButton();
lb.ID = "btn" + (_runningIndex++).ToString();
lb.Text = itemNbr;
lb.Click += genericLinkButton_Click;
foreach (Control ctrl in e.Row.Cells[1].Controls)
{
e.Row.Cells[1].Controls.Remove(ctrl);
}
e.Row.Cells[1].Controls.Add(lb);
}
}
should be working.

RowDataBound is triggered only if the GridView gets databound, so when you call gvData.DataBind(). But dynamically created controls must be created again on every postback.
The most appropriate event to create controls dynamically in a GridView is RowCreated which is triggered on every postback. Note that you the GridViewRow's DataItem is null on postback. So you cannot access it's datasource as opposed to RowDataBound. But that seems not to be necessary anyway here.
Note also that you don't need to loop all rows in RowDataBound or RowCreated since these events are triggered for every row in the GridView anyway.
protected void gvData_RowCreated(Object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string itemNbr = e.Row.Cells[1].Text;
LinkButton lb = new LinkButton();
lb.Text = itemNbr;
lb.Click += genericLinkButton_Click;
foreach (Control ctrl in e.Row.Cells[1].Controls)
{
e.Row.Cells[1].Controls.Remove(ctrl);
}
e.Row.Cells[1].Controls.Add(lb);
}
}