Question

I have a dynamically generated gridview with custom datasource.

The gridview allows “editing, inserting, and deleting”

Everything (all features) are working fine..

I then added a filtering feature to the gridview..

Let’s say previously my datasource is based on this select statement:

SELECT * FROM <Table>

Now, after filter:

SELECT * FROM <Table> WHERE <Filter Condition>

After filtering.. I am not able to do the editing (updating) gridview properly.. As during the editing mode..

   public void gvGridView_RowEditing(object sender, GridViewEditEventArgs e)
    {   
        gvGridView.EditIndex = e.NewEditIndex;
        ((TemplateField)gvGridView.Columns[1]).EditItemTemplate = null;
        //disable editing on primary key

        if (txtSearch.Text != string.Empty || CountRow() > 0)
        {
            FilterQuery(); //refilter the gridview
        }
        else
        {                
            gvGridView.DataBind();
            //if gridview is not meant to be filtered, just leave it as it is
        }
        Session["SelecetdRowIndex"] = e.NewEditIndex;
    }

Due to this line:

gvGridView.EditIndex = e.NewEditIndex;

The editindex will not be initialized correctly. For example:

1. Before filter it was index no 8

2. After filter it is index no 1

If i edit this gridview after filter what it will do is it will take 1 as the edit index (supposedly 8)… hence instead of updating data on index 8.. it will override data with index number 1…

I hope my question is clear enough.. looking forward to hear some answers :)..

Edit:

This what happens during gridview updating:

GridViewRow row = gvGridView.Rows[e.RowIndex];
//decide which row being edited..

for (int i = 0; i < Table.Columns.Count; i++)
        {
            string field_value = ((TextBox)row.FindControl(Table.Columns[i].ColumnName)).Text;
            ParameterArray.Add(field_value);
            //storing all value in that row into an array (including PK)
        }

The code above works fine (store all value into array) except for the primary key.. (always store e.rowindex value)..

Answer 1

In row updating event in cs page:

protected void Grid_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
   TextBox txtId = (TextBox)Grid.Rows[e.RowIndex].FindControl("txtId_insql");
   //Get the Id for which row is clicked
}

In aspx page:

<Gridview>
<column>
 <asp:BoundColumn DataField="txtId_insql" HeaderText="PrimaryID" Visible="False"></asp:BoundColumn> 
</columns>
</GridView>

so you will get the ID.You can update using the Id now.Not with the Index.