CODEWITHSUNDEEP
c#asp.netgridviewdatagridview
Af'faq
Af'faq

Reputation: 527

How to get cell value in a GridView on LinkButton Click Event? Or RowCommand?

I Have a GridView which conntains multiple records and couple of Link Buttons Named Edit and Detail. Now i want to Get the Name of the User (NOT Index), when a user click on Detail Link Button. Like "Name", "FatherName" etc Here is the .aspx code

<asp:GridView ID="dgvEmployeesInformation" runat="server" CssClass=" table table-bordered table-hover table-responsive" DataKeyNames="Id" AutoGenerateColumns="False" OnRowCommand="dgvEmployeesInformation_RowCommand" OnRowDataBound="dgvEmployeesInformation_RowDataBound" AllowPaging="True" AllowSorting="True" OnPageIndexChanging="dgvEmployeesInformation_PageIndexChanging">
    <%--1st Column--%>
    <Columns>
        <asp:BoundField HeaderText="ID" DataField="Id" ControlStyle-BackColor="#0066ff" Visible="False">
            <ControlStyle BackColor="#0066FF"></ControlStyle>
        </asp:BoundField>
        <asp:BoundField HeaderText="Name" DataField="Name" />
        <asp:BoundField HeaderText="Employee No" DataField="EmployeeNo" />
        <asp:BoundField HeaderText="Father Name" DataField="FatherName" />
        <asp:HyperLinkField DataNavigateUrlFields="Id" DataNavigateUrlFormatString="AddEmployeeBasic1.aspx?thid={0}" HeaderText="Update" NavigateUrl="~/AddEmployeeBasic1.aspx" Text="Edit" />
        <asp:TemplateField HeaderText="Action" ShowHeader="True">
            <ItemTemplate>
                <asp:LinkButton ID="lbDelete" runat="server" CausesValidation="False" CommandName="Delete" Text="Delete"></asp:LinkButton>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField>
            <ItemTemplate>
                <asp:LinkButton runat="server" ID="lbDetail" OnClick="lbDetail_Click" DataNavigateUrlFields="Id" DataNavigateUrlFormatString="EmployeesDetails.aspx?EmpID={0}" NavigateUrl="~/EmployeesDetails.aspx" HeaderText="Show Detail" Text="Detail"></asp:LinkButton>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Here is the lbDetail_Click Code

protected void lbDetail_Click(object sender, EventArgs e)
{
    GridViewRow clickedRow = ((LinkButton)sender).NamingContainer as GridViewRow;
    Label lblUserName = (Label)clickedRow.FindControl("Name");
    EmployeeID.EmpName = lblUserName.ToString();
}

When i put my program on Debugging mode, the lblUserName return NULL Here is the picture. enter image description here

What i want is that, when a user click on Detail LinkButton, then on lbDetail Click event, it gets the Name of the Employee and store it in a static variable. Following is the picture enter image description here

I don't understand how to solve this problem. Please help me through this. Your help will be really appreciated.

Upvotes: 1

Views: 7099

Answers (3)

Anh-Tuan N.
Anh-Tuan N.

Reputation: 36

I would just add data attributes to the details button then get it's values at code behind.

For example:

1.) Add new data-myData='<%# Eval("Name") %>' attribute and its value to button 

                    <asp:TemplateField>
                        <ItemTemplate>
                            <asp:LinkButton runat="server" ID="lbDetail" OnClick="lbDetail_Click" Text="Detail" data-ID='<%# Eval("ID") %>' data-myData='<%# Eval("Name") %>' ></asp:LinkButton>
                        </ItemTemplate>
                    </asp:TemplateField>

2.) Get those data from event handler

protected void lbDetail_Click(object sender, EventArgs e)
{
     LinkButton button = (LinkButton)sender;
     var name = (string)button.Attributes["data-myData"];
     var selectedID = (string)button.Attributes["data-ID"];
     Session["selectedID"] = selectedID ;
}

Upvotes: 2

Jamshaid K.
Jamshaid K.

Reputation: 4587

Here is how your code should look:

protected void lbDetail_Click(object sender, EventArgs e)
{
    GridViewRow clickedRow = ((LinkButton)sender).NamingContainer as GridViewRow;
    var username = clickedRow.Cells[1].Text;
    if(string.IsNullOrEmpty(username))
    {
        return;
    }
    EmployeeID.EmpName = username;
}

Upvotes: 0

VDWWD
VDWWD

Reputation: 35564

lblUserName is null because it's not a Label, but a BoundField. What you could do it get the Cell value.

protected void lbDetail_Click(object sender, EventArgs e)
{
    GridViewRow clickedRow = ((LinkButton)sender).NamingContainer as GridViewRow;
    Label1.Text = clickedRow.Cells[1].Text;
}

Or use a TemplateField that does contain a Label Name

<asp:TemplateField HeaderText="Name">
    <ItemTemplate>
        <asp:Label ID="Name" runat="server" Text='<%# Eval("Name")%>'></asp:Label>
    </ItemTemplate>
</asp:TemplateField>

Upvotes: 1

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