SPGridView SelectedRow.Cells[] retorna valor vazio

Question

Eu criei um controle SPGridView em minha web part visual.Dentro do SPGridView, existe um controle SPHyperLink que armazena alguma URL. Ao acessar esse valor usando SPGridView SelectedRow.Cells[3].Text, estou obtendo um valor vazio.

Controle SPGridView

<SharePoint:SPGridView ID="ShowNode" runat="server" AutoGenerateColumns="false" 
        AllowSorting="true" OnRowDataBound="ShowNode_RowDataBound" OnSelectedIndexChanged="ShowNode_RowIndexChanged" OnSorting="ShowNode_Sort" OnRowCommand="ShowNode_RowClick">
<Columns>
<asp:ImageField HeaderText="Icon"  DataImageUrlField="Img" HeaderStyle-HorizontalAlign="Left"></asp:ImageField>
<SharePoint:SPBoundField HeaderText="Name" DataField="Title" HeaderStyle-HorizontalAlign="Left" SortExpression="Name"/>
<SharePoint:SPBoundField HeaderText="Type" DataField="Type" HeaderStyle-HorizontalAlign="Left" SortExpression="Type" />
<asp:HyperLinkField  DataTextField="Link" HeaderText="Link" Visible="false" HeaderStyle-HorizontalAlign="Left"/>
</Columns>
</SharePoint:SPGridView>

Evento de clique na linha

protected void ShowNode_RowIndexChanged(object sender, EventArgs e)
        {
            int ind = ShowNode.SelectedRow.RowIndex;
            string link = ShowNode.SelectedRow.Cells[3].Text;


        }

Answer 1

Consegui obter os valores usando o atributo SPGridView DataKey.

Controle GridView

<SharePoint:SPGridView ID="ShowNode" runat="server" AutoGenerateColumns="false" AllowSorting="true" ShowFooter="true"  ShowHeader="true" DataSourceID="" DataKeyNames="Link,Type" OnRowDataBound="ShowNode_RowDataBound" OnSelectedIndexChanged="ShowNode_RowIndexChanged" OnSorting="ShowNode_Sort"  EnableViewState="true" >

<Columns>

<asp:ImageField HeaderText="Icon"  DataImageUrlField="Img" HeaderStyle-HorizontalAlign="Left">

</asp:ImageField><SharePoint:SPBoundField HeaderText="Name" DataField="Name" HeaderStyle-HorizontalAlign="Left" SortExpression="Name"/>

<SharePoint:SPBoundField HeaderText="Type" DataField="Type" HeaderStyle-HorizontalAlign="Left"  />

<asp:HyperLinkField  DataTextField="Link" HeaderText="Link" Visible="false" HeaderStyle-HorizontalAlign="Left"/>

</Columns> 

</SharePoint:SPGridView>

Código por trás

string u= ShowNode.DataKeys[ShowNode.SelectedRow.RowIndex]["Link"].ToString(); 

string t = ShowNode.DataKeys[ShowNode.SelectedRow.RowIndex]["Type"].ToString();

Answer 2

Tente remover a propriedade "Visible = false" do campo de hiperlink e verifique se ele não deve retornar um valor vazio.

Estou obtendo valor do meu lado.Tente depurá-lo e ver na janela "Shift F9" Navegue até lá, pois isto irá ajudá-lo a encontrar o valor de um determinado controlo.