Gridview and checkbox problem

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Hi, i have .aspx and aspx.cs file. In .aspx i have asp:GridView. In aspx.cs file, i have a method getCheckedProduct, where i get checked values

C#

private void getCheckedProduct()
{
   if (selected == string.Empty)
   {
      selected = Request.Form["selectProductName"];
   }
   else if (selected != string.Empty && Request.Form["selectProductName"] != string.Empty)
   {
      selected = selected + "," + Request.Form["selectProductName"];
   }
}

When i change the GridView page from 1 to 2 and back from 2 to 1, if statement ("&& Request.Form["selectProductName"] != string.Empty)") in getCheckedProduct() method does not detect tis... in the variable "selected" is added ",". Why?

Posted 12-May-14 23:35pm

vezo11

Updated 13-May-14 0:27am

Nelek

v3

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sankarsan parida · Accepted Answer · 2014-05-13T00:43:00

Solution 1

put a static string in your page and get that value before postback
Then no need to call this method again after your gridview pagination

static string selected = "";
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            getCheckedProduct();
        }
    }

In pagination time just call the string selected and use it with your requirements

Posted 13-May-14 0:43am

sankarsan parida

Comments

vezo11 13-May-14 7:37am

Hi,
thanks for your solution but i have static string "selected".

"getCheckedProduct();" i call in "..._SelectedIndexChanged()" and if i add !IsPostBack in this method, then program skipped this call ("getCheckedProduct();")

[no name] 13-May-14 7:44am

But for the first of page it will call then no need to call again it
You will get the value from your static string