问题描述
|
这是我的代码，它给出ddl = null的值：
//event handler to bind the data to the row before rendering the gridview
protected void gridview1_RowDataBound(object sender,GridViewRowEventArgs e)
{
if ((e.Row.RowType == DataControlRowType.DataRow)&&(e.Row.DataItem!=null))
{
//DropDownList ddlNo = (DropDownList)e.Row.FindControl(\"ddlNo\");
DropDownList ddlNo = (DropDownList)e.Row.FindControl(\"ddlNo\");
if (ddlNo != null)
{
ddlNo.DataSource = Test.GetData();
ddlNo.DataBind();
ddlNo.SelectedValue = gridview1.DataKeys[e.Row.RowIndex].Values[0].ToString();//datakeys are used to retain the value of the no. in edit mode
}
}
}
<asp:GridView ID=\"gridview1\" runat=\"server\" AutoGenerateColumns=\"false\" AutoGenerateDeleteButton=\"false\" AutoGenerateEditButton=\"false\" ShowFooter=\"true\" EmptyDataText=\"No data available.\" PagerStyle-HorizontalAlign=\"Right\" AllowPaging=\"true\" AllowSorting=\"true\" GridLines=\"Vertical\" Width=\"98%\" EnableViewState=\"true\" OnRowCancelingEdit=\"gridview1_RowCancelingEdit\" OnRowDataBound=\"gridview1_RowDataBound\" OnRowEditing=\"gridview1_RowEditing\" OnRowUpdating=\"gridview1_RowUpdating\" OnRowCommand=\"gridview1_RowCommand\" OnRowDeleting=\"gridview1_RowDeleting\" DataKeyNames=\"testID\">
<Columns>
<asp:TemplateField HeaderText=\"Select\" HeaderStyle-HorizontalAlign=\"Left\">
<ItemTemplate>
<asp:Label ID=\"lblSelect\" runat=\"server\" Text=\"Select\"></asp:Label>
<%-- <asp:CheckBox ID=\"chkSelect\" runat=\"server\" AutoPostBack=\"true\" OnCheckedChanged=\"chkSelect_CheckChanged\" />--%>
</ItemTemplate>
<HeaderStyle HorizontalAlign=\"Left\" />
</asp:TemplateField>
<asp:BoundField DataField=\"testID\" HeaderText=\"SearchId\" />
<asp:TemplateField HeaderText=\"Name\" HeaderStyle-HorizontalAlign=\"Left\">
<EditItemTemplate>
<asp:TextBox ID=\"txtName\" runat=\"server\" Text=\'<%#Eval(\"testDesc\") %>\' />
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID=\"txtNewName\" runat=\"server\"></asp:TextBox>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID=\"lblName\" runat=\"server\" Text=\'<%# Bind(\"testDesc\") %>\'></asp:Label>
</ItemTemplate>
<HeaderStyle HorizontalAlign=\"Left\" />
</asp:TemplateField>
<asp:TemplateField HeaderText=\"No.\" HeaderStyle-HorizontalAlign=\"Left\">
<EditItemTemplate>
<asp:DropDownList ID=\"ddlNo\" runat=\"server\" DataTextField=\"testNo\" DataValueField=\"testNo\" />
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID=\"lblNo\" runat=\"server\" Text=\'<%# Bind(\"testNo\") %>\'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID=\"ddlNewNo\" runat=\"server\" DataTextField=\"testNo\" DataValueField=\"testNo\">
</asp:DropDownList>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText=\"Edit\" ShowHeader=\"False\">
<EditItemTemplate>
<asp:LinkButton ID=\"linkbt1\" runat=\"server\" CausesValidation=\"true\" CommandName=\"Update\" Text=\"Update\">
</asp:LinkButton>
<asp:LinkButton ID=\"linkbt2\" runat=\"server\" CausesValidation=\"false\" CommandName=\"Cancel\" Text=\"Cancel\"></asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID=\"linkbt1\" runat=\"server\" CausesValidation=\"false\" CommandName=\"Edit\" Text=\"Edit\">
</asp:LinkButton>
</ItemTemplate>
<FooterTemplate>
<asp:LinkButton ID=\"linkbt2\" runat=\"server\" CausesValidation=\"false\" CommandName=\"AddNew\" Text=\"AddNew\">
</asp:LinkButton>
</FooterTemplate>
</asp:TemplateField>
<asp:CommandField HeaderText=\"Delete\" ShowDeleteButton=\"true\" ShowHeader=\"true\" />
</Columns>
</asp:GridView>
解决方法
您将ddl no放在ѭ2中，但是您仅在ѭ3中进行检查，将其更改为FooterRow，它应该找到它
将上面的行更改为
if（e.Row.RowType == DataControlRowType.Footer && e.Row.DataItem！= null）
, <％-DataKeyNames = \“环境ID \”-％>
\'/>
<％-
\'>
\'/>
-％>
\'/>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID=\"lblapp\" runat=\"server\" Text=\'<%# Eval(\"AppName\") %>\'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID=\"ddlAppFooter\" class=\"SearchBoxRTD\" runat=\"server\" DataTextField=\"AppName\"
DataValueField=\"SNO\">
</asp:DropDownList>
</FooterTemplate>
<HeaderStyle HorizontalAlign=\"Left\" />
</asp:TemplateField>
<asp:TemplateField HeaderText=\"TestType\" HeaderStyle-Width=\"50\">
<EditItemTemplate>
<asp:DropDownList ID=\"ddlTestTypeDataRow\" class=\"SearchBoxRTD\" runat=\"server\" DataTextField=\"Testingtypedescription\"
DataValueField=\"TestingTypeID\">
</asp:DropDownList>
<asp:HiddenField ID=\"hdnTesttype\" runat=\"server\" Value=\'<%# Bind(\"Testtype\") %>\' />
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID=\"lblTestType\" runat=\"server\" Text=\'<%# Eval(\"Testingtypedescription\") %>\'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID=\"ddlTestTypeFooter\" class=\"SearchBoxRTD\" runat=\"server\" DataTextField=\"Testingtypedescription\"
DataValueField=\"TestingTypeID\">
</asp:DropDownList>
</FooterTemplate>
<HeaderStyle HorizontalAlign=\"Left\" />
</asp:TemplateField>
<asp:TemplateField HeaderText=\"Scenario Type\" HeaderStyle-Width=\"50\">
<EditItemTemplate>
<asp:DropDownList ID=\"ddlScenarioTypeDataRow\" class=\"SearchBoxRTD\" runat=\"server\" DataTextField=\"ScenarioTypedescription\"
DataValueField=\"ScenarioTypeID\">
</asp:DropDownList>
<asp:HiddenField ID=\"hdnScenariotype\" runat=\"server\" Value=\'<%# Bind(\"ScenarioTypeID\") %>\' />
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID=\"lblScenarioType\" runat=\"server\" Text=\'<%# Eval(\"ScenarioTypedescription\") %>\'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID=\"ddlScenarioTypeFooter\" class=\"SearchBoxRTD\" runat=\"server\"
DataTextField=\"ScenarioTypedescription\" DataValueField=\"ScenarioTypeID\">
</asp:DropDownList>
</FooterTemplate>
<HeaderStyle HorizontalAlign=\"Left\" />
</asp:TemplateField>
<asp:TemplateField HeaderText=\"Scenario\">
<EditItemTemplate>
<asp:TextBox ID=\"txtScenario\" runat=\"server\" Text=\'<%# Bind(\"Scenario\") %>\'></asp:TextBox>
<asp:RequiredFieldValidator ID=\"RFDGEdUI\" runat=\"server\" Font-Bold=\"true\" ErrorMessage=\"*\"
ControlToValidate=\"txtScenario\" ValidationGroup=\"EditScenario\"></asp:RequiredFieldValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID=\"LblScenario\" runat=\"server\" Text=\'<%# Bind(\"Scenario\") %>\' />
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID=\"txtfootScenario\" runat=\"server\"></asp:TextBox>
<asp:RequiredFieldValidator ID=\"RFDGScenario\" runat=\"server\" Font-Bold=\"true\" ErrorMessage=\"*\"
ControlToValidate=\"txtfootScenario\" ValidationGroup=\"AddScenario\"></asp:RequiredFieldValidator>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText=\"Status\">
<EditItemTemplate>
<asp:CheckBox ID=\"chkScenariostatus\" runat=\"server\" Checked=\'<%# Bind(\"Status\") %>\' />
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID=\"LblScenarioStatus\" runat=\"server\" Text=\'<%# Bind(\"Status\") %>\' />
</ItemTemplate>
<FooterTemplate>
<asp:CheckBox ID=\"chkScenariofooter\" runat=\"server\" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText=\"Edit\" ShowHeader=\"False\">
<EditItemTemplate>
<asp:LinkButton ID=\"lbkUpdateScenario\" runat=\"server\" ValidationGroup=\"EditScenario\"
CausesValidation=\"True\" CommandName=\"Update\" Text=\"Update\"></asp:LinkButton>
<asp:LinkButton ID=\"lnkCancelScenario\" runat=\"server\" CausesValidation=\"False\" CommandName=\"Cancel\"
Text=\"Cancel\"></asp:LinkButton>
</EditItemTemplate>
<FooterTemplate>
<asp:LinkButton ID=\"lnkAddScenario\" runat=\"server\" ValidationGroup=\"AddScenario\"
CausesValidation=\"True\" CommandName=\"Insert\" Text=\"Insert\"></asp:LinkButton>
</FooterTemplate>
<ItemTemplate>
<asp:LinkButton ID=\"lnkEditScenario\" runat=\"server\" CausesValidation=\"False\" CommandName=\"Edit\"
Text=\"Edit\"></asp:LinkButton>
</ItemTemplate>
<HeaderStyle HorizontalAlign=\"Left\" />
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
No Applications available!
</EmptyDataTemplate>
</asp:GridView>
//services,environment,platform
// bool flag = false;
if (e.Row.RowType == DataControlRowType.DataRow && (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate))
{
Label lbl = (Label)e.Row.FindControl(\"LblScenarioStatus\");
if (null != lbl && lbl.Text != \"\")
{
lbl.Text = (string.Compare(lbl.Text,\"True\",true) == 0) ? \"Enabled\" : \"Disabled\";
}
}
if (e.Row.RowType == DataControlRowType.DataRow && (e.Row.RowState & DataControlRowState.Edit) == DataControlRowState.Edit)
// {
// for (int i = 0; i < grdScenario.Rows.Count ; i++)
// {
// foreach (GridViewRow gvRow in grdScenario.Rows)
{
DropDownList ddlApp = (DropDownList)e.Row.FindControl(\"ddlAppDataRow\");
DropDownList ddlTT = (DropDownList)e.Row.FindControl(\"ddlTestTypeDataRow\");
DropDownList ddlST = (DropDownList)e.Row.FindControl(\"ddlScenarioTypeDataRow\");
//Label lblapp = ((Label)e.Row.Cells[2].FindControl(\"lblapp\"));
//Label lblTestType = ((Label)e.Row.Cells[3].FindControl(\"lblTestType\"));
//Label lblScenarioType = ((Label)e.Row.Cells[4].FindControl(\"lblScenarioType\"));
// Label lblapp = ((Label)grdScenario.Rows[i].Cells[2].FindControl(\"lblapp\"));
//Label lblTestType = ((Label)grdScenario.Rows[i].Cells[3].FindControl(\"lblTestType\"));
// Label lblScenarioType = ((Label)grdScenario.Rows[i].Cells[4].FindControl(\"lblScenarioType\"));
if (ddlApp != null)
{
HiddenField hdnAppid = (HiddenField)e.Row.FindControl(\"hdnAppid\");
ddlApp.DataSource = ds.Tables[4].DefaultView;
ddlApp.DataTextField = \"AppName\";
ddlApp.DataValueField = \"SNO\";
ddlApp.DataBind();
//ddlApp.SelectedIndex = ddlApp.Items.IndexOf(ddlApp.Items.FindByText(grdScenario.DataKeys[e.Row.RowIndex].Values[1].ToString()));
//ddlApp.SelectedItem.Text = lblapp.Text.ToString();
ddlApp.SelectedValue = hdnAppid.Value;
}
if (ddlTT != null)
{
HiddenField hdnTesttype = (HiddenField)e.Row.FindControl(\"hdnTesttype\");
ddlTT.DataSource = ds.Tables[5].DefaultView;
ddlTT.DataTextField = \"Testingtypedescription\";
ddlTT.DataValueField = \"TestingTypeID\";
ddlTT.DataBind();
//ddlTT.SelectedItem.Text = lblTestType.Text.ToString();
ddlTT.SelectedValue = hdnTesttype.Value;
//ddlTT.SelectedIndex = ddlTT.Items.IndexOf(ddlTT.Items.FindByText(grdservices.DataKeys[e.Row.RowIndex].Values[2].ToString()));
}
if (ddlST != null)
{
HiddenField hdnScenariotype = (HiddenField)e.Row.FindControl(\"hdnScenariotype\");
ddlST.DataSource = ds.Tables[6].DefaultView;
ddlST.DataTextField = \"ScenarioTypeDescription\";
ddlST.DataValueField = \"ScenarioTypeID\";
ddlST.DataBind();
ddlST.SelectedValue = hdnScenariotype.Value;
//ddlST.SelectedItem.Text = lblScenarioType.Text.ToString();
//ddlST.SelectedIndex = ddlST.Items.IndexOf(ddlST.Items.FindByText(grdScenario.DataKeys[e.Row.RowIndex].Values[3].ToString()));
}
}
// }
//// }
}
if (e.Row.RowType == DataControlRowType.Footer)
{
//Bind environment,platform at footer.
DropDownList cmbNewType = (DropDownList)e.Row.FindControl(\"ddlAppFooter\");
cmbNewType.DataSource = ds.Tables[4].DefaultView;
cmbNewType.DataBind();
DropDownList cmbNewType1 = (DropDownList)e.Row.FindControl(\"ddlTestTypeFooter\");
cmbNewType1.DataSource = ds.Tables[5].DefaultView;
cmbNewType1.DataBind();
DropDownList cmbNewType2 = (DropDownList)e.Row.FindControl(\"ddlScenarioTypeFooter\");
cmbNewType2.DataSource = ds.Tables[6].DefaultView;
cmbNewType2.DataBind();
}
}
catch (System.Exception) { }
}
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