Retrieve select row.cell from Gridview and display in Textbox

Hi all,

Pls help with this issue:

I have 2 pages both are using Gridview and implemented in C# asp.net.

On page 1, in the Gridview (ie, Edit, Delete enable) when I click Edit so I have a Textbox which allow me to
edit the text in the textbox that populated from the database and next to it I have a button when click I need
to open a page 2 where user can select a row (ie, page 2 also use Gridview, Select enable and use
different datasource ), once user select a row I need to get the value row.cells[1] for example and put the value
into the textbox in page 1 and page 2 close itself. the purpose of page 2 serve as a look up table and for user
to select a row, then display that value in the textbox in page1.

I can get the value on page 2 when user select a row but I dont know how to implement such when user
select a row and get the value on page 2 and put the value into the textbox in page 1 and page 2 close itself.

any suggestion and guidance is greatly appreciated.
thanks in advance.

Re: Retrieve select row.cell from Gridview and display in Textbox

Hi:

Here's the sample:

Page1:

Page2:

Regards

Re: Retrieve select row.cell from Gridview and display in Textbox

Since you are using the SELECT CommandField then you can have something like this

Page2.Aspx

protected void Button1_Click(object sender, EventArgs e)
    {

        for (int i = 0; i < GrdiView1.Rows.Count; i++)
        {
            if (GrdiView1.SelectedIndex == i)
            {
                String name =GridView1.Rows[i].Cells[1].Text; //Gets the data value in the grid;
                Session["Value"] = name;
    Response.Redirect("Page1.aspx");

            }
        }

    }

Page1.aspx

    protected void Page_Load(object sender, EventArgs e)
    {
        string RowValue = Session["Value"].ToString();

         TextBox1.Text = RowValue;

    }

Re: Retrieve select row.cell from Gridview and display in Textbox

You can create session for seleted value in grid in page2.aspx and get that session value on page1.aspx on click event of page2.aspx button

Re: Retrieve select row.cell from Gridview and display in Textbox

Hi Allen,

Thank you all very much for your reply
The issue that I am facing is that on page 1, I have a Gridview with 2 fields from db and Edit enable
so when I click Edit on a particular row let say it should shows 2 TextBox, 2 buttons ( Lookup1, Lookup 2 ), Update and Cancel button
so when I click on the button next to the TextBox 1, for example Lookup 1,

a new page should open, and I suppose to pass along the
Id of the TextBox 1 next to the button so that on page 2 when user select a row, I just need to get the value and assign to the Textbox in page 1.
I just dont know how to get the TextBox Id to pass along to page 2, I tried the OnRowEditing="gridview_OnRowEditing" but I got a NullException, I also tried
OnRowDataBound="gridview_RowDataBound" it's also NullException

TextBox tb = (TextBox)e.Row.Cells[1].FindControl("TextBox1");
or
TextBox tb = (TextBox)GridView1.FindControl("TextBox1");

If I create a TextBox that is not in the Gridview that it is OK , the problem is the TextBoxId
Is there any way to get the TextBoxId when the Edit button is click so that I can pass along to page2 ?
I tried and tried and almost give up so pls pls pls help.

Truly appreciated

Re: Retrieve select row.cell from Gridview and display in Textbox

Try this

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{

foreach(GridViewRow row in GridView1.rows)
{

TextBox tb = (TextBox) row.Cells[1].FindControl("TextBox1");

//OR

TextBox tb = (TextBox) row.FindControl("TextBox1");

}

Re: Retrieve select row.cell from Gridview and display in Textbox

Hi vinz,

Thanks for your replied
I tried and it's still null for

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{

foreach(GridViewRow row in GridView1.rows)
{

TextBox tb = (TextBox) row.Cells[1].FindControl("TextBox1") ;
TextBox tb1 = (TextBox) row.FindControl("TextBox1") ;

if ( tb = null || tb1 != null)
{
Response.write( TextBox tb = (TextBox) row.Cells[1].FindControl("TextBox1").Text );
}
}

and it's still null

Re: Retrieve select row.cell from Gridview and display in Textbox

i think there is something wrong about your IF condition.. try this

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{

foreach(GridViewRow row in GridView1.rows)
{

TextBox tb = (TextBox) row.Cells[1].FindControl("TextBox1") ;

if ( tb.Text != null || tb.Text != "")
{
Response.write( tb.Text );
}
}

NOTE: Besure that your textbox1 reside in Cells[1] or else you cannot get the value for TextBox1

Re: Retrieve select row.cell from Gridview and display in Textbox

Hi Vinz,

Thanks for your reply,
it's still null. I think because the Textbox in the Edit row is formed only after Edit is click
I even tried to get the TextId on OnRowEditing but still TextId is null

Any other suggestion is greatly appreciated.
Regards

Re: Retrieve select row.cell from Gridview and display in Textbox

Why are you looping through gridview's row in rowdatabound event?

try this one

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{

TextBox tb = (TextBox) e.row.FindControl("TextBox1") ; // debug this code

string val=tb.Text;
}

Re: Retrieve select row.cell from Gridview and display in Textbox

Hi Vinz,

Thanks

I got this error when trying that

so in my Gridview

OnDataBound="gridview_RowDataBound"

Code behind:

protected void gridview_RowDataBound(object sender, GridViewRowEventArgs e)
{

        for (int i = 0; i < 4; i++)
        {
            //TextBox txtName = GridView1.Rows[i].FindControl("TextBox3") as TextBox;
            TextBox txtName = (TextBox)e.Row.FindControl("TextBox3");
            if (txtName != null)
            {
                Response.Write("NOT NULL" + txtName.Text);
            }else
                Response.Write("all NULL <br />" );
        }
   }

loop thru 4 for testing since I know that are only 3 rows

Error 3 C:\Inetpub\wwwroot\WinPorte\ICDM03-10.aspx No overload for 'gridview_RowDataBound' matches delegate 'System.EventHandler' 35

it is complaining that GridViewRowEventArgs in the function parameterprotected void gridview_RowDataBound(object sender, GridViewRowEventArgs e)

if I change to

protected void gridview_RowDataBound(object sender, EventArgs e)

then it is not complaining

any suggestion is greatly appreciated

Re: Retrieve select row.cell from Gridview and display in Textbox

Try to put your code in PreRender event

    protected void gridview_PreRender(object sender, EventArgs e)
    {
    //codes here
    }

Re: Retrieve select row.cell from Gridview and display in Textbox

Hi brigideW,

I noticed some mistakes

1st mistake is ~~OnDataBound="gridview_RowDataBound"~~ OnRowDataBound="gridview_RowDataBound"

Code behind:

2ndMistake:Dont loop through RowDataBound. it already checks each row

3rd: mistake: you didnt specify rowtype

protected void gridview_RowDataBound(object sender, GridViewRowEventArgs e)
{

if (e.Row.RowType == DataControlRowType.DataRow)
{

            TextBox txtName = (TextBox)e.Row.FindControl("TextBox3");
            if (txtName != null)
            {
                Response.Write("NOT NULL" + txtName.Text);
            }

else
Response.Write("all NULL <br />" );

}
}

Check now

Regards,

naveen

Re: Retrieve select row.cell from Gridview and display in Textbox

Hi naveen,

Thanks for your reply.
Yes, let me try.

Happy Holidays

Re: Retrieve select row.cell from Gridview and display in Textbox

i need source code for this ya

Re: Retrieve select row.cell from Gridview and display in Textbox

Hi can anyone tell me how can i get the row no of the gridview when user clicks on the grid view or enters any data in the gird view template field when then item template is having a textbox in it.

Re: Retrieve select row.cell from Gridview and display in Textbox

Thanks! This helped me in resolving an issue in a scenario