网格视图-在单击按钮时将数据源与数据绑定，但是网格未出现

Question

I have a GridView in UpdatePanel . On button click event I am binding data with Grid view. Data is being binded properly but Grid is not showing.

 protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
           bindData();
        }
    }

protected void bindData() 
        {
                    // dv is my data view have rows and columns
                    GridView1.DataSource = dv;
                    GridView1.DataBind();
                    UpdatePanel.Update();
                }
        }

On Button Click Event :-

protected void btnUpdateExtensions_Click(object sender, EventArgs e)
        {   
        // dv is data view have data with columns and rows
        GridView1.DataSource = dv;
        GridView1.DataBind();
                UpdatePanel.Update();      
        }

At page load its binding data properly ad showing GridView but at button Click Event its not showing GridView while data source is from same source.

Answer 1

Your button is inside of updatepanel then just call

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
your button and gridview
</asp:UpdatePanel 

protected void btnUpdateExtensions_Click(object sender, EventArgs e)
        {   
         bindData();
        }

No need to write UpdatePanel.Update();