[英]Binding a button ItemTemplate to check in which row has been clicked
我有一個具有以下外觀的gridview:
Edit是經典的Edit / Update / Cancel buttonColumn。 升級是集成了按鈕的ItemTemplate。 單擊“升級/降級”按鈕之一后,gridview的外觀如下:
現在,到目前為止,我已經實現了發送“保存”按鈕事件,以便僅獲取checkboxList之一(與“保存”按鈕相關聯的一個)的值。 但是,我想將CheckboxList / Save按鈕的每個Block關聯到單個Upgrade / Downgrade按鈕。 因此,如果單擊第一行上的按鈕,則需要禁用第二行上的塊,反之亦然。 我現在所擁有的是以下內容:
在升級/降級按鈕中單擊:
protected void Button2_Click(object sender, EventArgs e)
{
GridView1.Columns[2].Visible = true;
button2Clicked = true;
Session["buttonClicked"] = button2Clicked;
}
在保存按鈕中單擊:
protected void Button3_Click(object sender, EventArgs e)
{
CheckBoxList chb = new CheckBoxList();
Button bt3 = (Button)sender;
chb = (CheckBoxList)bt3.FindControl("Checkbox1");
if(chb.SelectedValue=="Upgrade")
Response.Write("Upgrade");
else if (chb.SelectedValue == "Downgrade")
Response.Write("Downgrade");
else
Response.Write("Not Allowed!");
}
第二個版本的Save buttonClick如下:
protected void Button3_Click(object sender, EventArgs e)
{
CheckBoxList chb = new CheckBoxList();
Button bt3 = (Button)sender;
chb = (CheckBoxList)bt3.FindControl("Checkbox1");
if ((bool)Session["buttonClicked"])
{
if (chb.SelectedValue == "Upgrade")
Response.Write("Upgrade");
else if (chb.SelectedValue == "Downgrade")
Response.Write("Downgrade");
else
Response.Write("Not Allowed!");
}
else { Response.Write("Wrong Button clicked!"); }
}
似乎“上/降級”按鈕單擊未存儲在任何地方。 我有什么事想念嗎?
因此,在@Andrei關於使用RowCommand事件的提示和找到的教程之后: 在這里和這里(這在c#和VB中),我將代碼修改如下:
首先,我這樣修改按鈕:
<asp:Button ID="Button2" runat="server" Text="Upgrade/Downgrade" OnClick="Button2_Click" CommandName="Command" CommandArgument="<%# Container.DataItemIndex %>" />
使用本教程了解Container.DataItemIndex
同樣,您必須向Gridview添加一個RowCommand事件,如下所示:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
onrowcancelingedit="GridView1_RowCancelingEdit" OnRowCommand="GridView1_RowCommand"
onrowediting="GridView1_RowEditing" onrowupdating="GridView1_RowUpdating"
onrowdatabound="GridView1_RowDataBound" EnableModelValidation="True" BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" ForeColor="Black" GridLines="Vertical">
<AlternatingRowStyle BackColor="#CCCCCC" />
在后面的代碼中,有一些修改:
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Command")
{
//Determine the RowIndex of the Row whose Button was clicked.
int rowIndex = Convert.ToInt32(e.CommandArgument);
//Reference the GridView Row.
GridViewRow row = GridView1.Rows[rowIndex];
//Fetch value of CheckboxList.
CheckBoxList chb = (row.FindControl("Checkbox1") as CheckBoxList);
chb.Enabled = true;
}
}
看起來很簡單!
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