bind control inside griedview

Question

i m trying to bind dropdown with previus selected selected value inside gried view.

after adding new row dynamically to griedview m not getting selected value of dropdown

protected void ButtonAdd_Click(object sender, EventArgs e)

{

foreach (GridViewRow gr in GrvSalesEntry.Rows)

{

Label Lblproduct = new Label();

Lblproduct = (Label)gr.Cells[2].FindControl("Lblproductcode");

if (Lblproduct.Visible == false)

{

AddNewRowToGrid();

//TextBox ddl = (TextBox)GrvSalesEntry.Rows[GrvSalesEntry.Rows.Count - 1].FindControl("txtCompanyName");

DropDownList ddl = (DropDownList)GrvSalesEntry.Rows[GrvSalesEntry.Rows.Count - 1].FindControl("DropDownListCompany");

ddl.Focus();

break;

}

else

{

}

}

}

 

private void AddNewRowToGrid()

{

if (ViewState["CurrentTable"] != null)

{

DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];

DataRow drCurrentRow = null;

if (dtCurrentTable.Rows.Count > 0)

{

drCurrentRow = dtCurrentTable.NewRow();

drCurrentRow["RowNumber"] = dtCurrentTable.Rows.Count + 1;

//add new row to DataTable

dtCurrentTable.Rows.Add(drCurrentRow);

//Store the current data to ViewState for future reference

ViewState["CurrentTable"] = dtCurrentTable;

for (int i = 0; i < dtCurrentTable.Rows.Count - 1; i++)

{

//extract the DropDownList Selected Items

//TextBox ddl1 = (TextBox)GrvSalesEntry.Rows[i].Cells[1].FindControl("txtCompanyName");

//TextBox ddl2 = (TextBox)GrvSalesEntry.Rows[i].Cells[2].FindControl("txtCategoryName");

//TextBox ddl3 = (TextBox)GrvSalesEntry.Rows[i].Cells[3].FindControl("txtProductName");

DropDownList ddl1 = (DropDownList)GrvSalesEntry.Rows[i].Cells[1].FindControl("DropDownListCompany");

DropDownList ddl2 = (DropDownList)GrvSalesEntry.Rows[i].Cells[2].FindControl("DropDownListCategoryname");

DropDownList ddl3 = (DropDownList)GrvSalesEntry.Rows[i].Cells[3].FindControl("DropDownListProduct");

// Update the DataRow with the DDL Selected Items

dtCurrentTable.Rows[i]["Column1"] = ddl1.SelectedValue;

dtCurrentTable.Rows[i]["Column2"] = ddl2.SelectedValue;

dtCurrentTable.Rows[i]["Column3"] = ddl3.SelectedValue;

//extract the TextBox values

TextBox box1 = (TextBox)GrvSalesEntry.Rows[i].Cells[4].FindControl("txtProQty");

TextBox box2 = (TextBox)GrvSalesEntry.Rows[i].Cells[5].FindControl("txtRroRate");

TextBox box3 = (TextBox)GrvSalesEntry.Rows[i].Cells[6].FindControl("txttotAmt");

dtCurrentTable.Rows[i]["Column4"] = box1.Text;

dtCurrentTable.Rows[i]["Column5"] = box2.Text;

dtCurrentTable.Rows[i]["Column6"] = box3.Text;

}

enableField();

//Rebind the Grid with the current data to reflect changes

GrvSalesEntry.DataSource = dtCurrentTable;

GrvSalesEntry.DataBind();

}

}

else

{

Response.Write("ViewState is null");

}

//Set Previous Data on Postbacks

// SetPreviousData();

}