CODEWITHSUNDEEP
c#asp.netstringgridviewlabel
Vipin
Vipin

Reputation: 261

cannot convert from 'System.Web.UI.WebControls.Label' to 'string'?

I want to insert some values from grid to db while clicking button submit. While using the given below code shows an error. The code is given below. Help me to find a proper solution.

Code:

protected void btnApprove_Click(object sender, EventArgs e)
   {
        ShadingAnalysisDataSetTableAdapters.tbl_ItemRequest_StatusTableAdapter rs;
        rs = new ShadingAnalysisDataSetTableAdapters.tbl_ItemRequest_StatusTableAdapter();

        var ItemName = (Label)GridView2.SelectedRow.Cells[1].FindControl("lblItem");
        var Quantity = (Label)GridView2.SelectedRow.Cells[2].FindControl("lblQnty"); 

        rs.testInsert(ItemName, Quantity);
   }

I have modified my code based on the above suggestions. But now I am getting another error. The new error is: Object reference not set to an instance of an object.

enter image description here

Upvotes: 1

Views: 4546

Answers (3)

Manu Nair
Manu Nair

Reputation: 322

var ItemName = (Label)GridView2.SelectedRow.Cells[1].FindControl("lblItem");

here you will get the label control on the ItemName and you can get the label text value on string variable as given below.

string Text_Value= ItemName.text;

Upvotes: 2

ekad
ekad

Reputation: 14614

By doing this

var ItemName = (Label)GridView2.SelectedRow.Cells[1].FindControl("lblItem");

ItemName would be a Label instead of the text value of lblItem. I would guess that both parameters of rs.testInsert method are string so you got the error because you're passing two Labels instead of two strings. You can get the text value from the .Text property of the label as below

var ItemName = ((Label)GridView2.SelectedRow.Cells[1].FindControl("lblItem")).Text;
var Quantity = ((Label)GridView2.SelectedRow.Cells[2].FindControl("lblQnty")).Text;

Upvotes: 2

Rahul Nikate
Rahul Nikate

Reputation: 6337

You are finding Label control and assigning to var ItemName and var Quantity.So You are getting error "cannot convert from 'System.Web.UI.WebControls.Label' to 'string'".

 var ItemName = (Label)GridView2.SelectedRow.Cells[1].FindControl("lblItem");
 var Quantity = (Label)GridView2.SelectedRow.Cells[2].FindControl("lblQnty");

So, Add Text property to label.

 var ItemName = ((Label)GridView2.SelectedRow.Cells[1].FindControl("lblItem")).Text;
 var Quantity = ((Label)GridView2.SelectedRow.Cells[2].FindControl("lblQnty")).Text;

Upvotes: 2

Related Questions