Question

如何使用两个单独的列表填充转发器

我有以下转发器：

<div style="width: 100%; overflow: hidden;">
    <asp:Repeater ID="rptLabels" runat="server" ClientIDMode="Static">
        <HeaderTemplate>
            <div class="hidOverflow setFloatL smallPadLeft" style="width: 45%; float: left;">

        </HeaderTemplate>
        <ItemTemplate>
                <div class="hidOverflow smallPad">
                    <div class="setFloatL halfWidth vertAlignT">
                        <asp:Label ID="lbl1" ClientIDMode="Static" runat="server" Text="<%# Container.DataItem.ToString() %>"></asp:Label>
                    </div>
                    <div class="setFloatL vertAlignT">
                        <asp:Label ID="lbl2" ClientIDMode="Static" runat="server" Text="<%# Container.DataItem.ToString() %>"></asp:Label>
                    </div>
                </div>
        </ItemTemplate>
        <FooterTemplate>
            </div>
        </FooterTemplate>
    </asp:Repeater>
    <asp:Repeater ID="rptLabels2" runat="server" ClientIDMode="Static">
        <HeaderTemplate>
            <div class="hidOverflow setFloatL smallPadLeft" style="width: 45%; float: left;">

        </HeaderTemplate>
        <ItemTemplate>
                <div class="hidOverflow smallPad">
                    <div class="setFloatL halfWidth vertAlignT">
                        <asp:Label ID="lbl3" ClientIDMode="Static" runat="server" Text="<%# Container.DataItem.ToString() %>"></asp:Label>
                    </div>
                    <div class="setFloatL vertAlignT">
                        <asp:Label ID="lbl4" ClientIDMode="Static" runat="server" Text="<%# Container.DataItem.ToString() %>"></asp:Label>
                    </div>
                </div>
        </ItemTemplate>
        <FooterTemplate>
            </div>
        </FooterTemplate>
    </asp:Repeater>
</div>

我正在尝试将列名填充到每个lbl1中，并将相应列的行值填充到每个lbl2中。我有以下代码：

List<string> colO = new List<string>();
List<string> colOV = new List<string>();
List<string> colT = new List<string>();
List<string> colTV = new List<string>();

using (SqlConnection conn = new SqlConnection(gloString))
{

    string strQuery = @""; //query which generates the dataset

    try
    {
        SqlDataAdapter da = new SqlDataAdapter(strQuery, conn);

        DataSet myDataSet = new DataSet();
        da.Fill(myDataSet);


        DataTable myDataTable = new DataTable();
        myDataTable = myDataSet.Tables[0];

        for (i = 0; i < myDataSet.Tables[0].Columns.Count / 2; i++)
        {
            lop += myDataSet.Tables[0].Columns[i].ColumnName + " ";
            colO.Add(myDataSet.Tables[0].Columns[i].ColumnName.ToString()); //column name
            colOV.Add(myDataSet.Tables[0].Rows[0][i].ToString()); //row value of the column
        }
        lop += "\n\n";
        for (int j = i; j < myDataSet.Tables[0].Columns.Count; j++)
        {
            lop += myDataSet.Tables[0].Columns[j].ColumnName + " ";
            colT.Add(myDataSet.Tables[0].Columns[j].ColumnName.ToString()); //column name
            colTV.Add(myDataSet.Tables[0].Rows[0][j].ToString()); //row value of the column
        }

        rptLabels.DataSource = colO; //I would like to popupate "colO" into "lbl1" and "colOV" into "lbl2" inside "rptLabels" repeater
        rptLabels.DataBind();

        rptLabels2.DataSource = colT; //I would like to popupate "colT" into "lbl3" and "colTV" into "lbl4" inside "rptLabels2" repeater
        rptLabels2.DataBind();
    }
    catch (SqlException)
    {
    }
}

现在我只能为每个转发器使用一个列表作为数据源。如何修改代码以实现以下目的：

rptLabels.DataSource = colO; //I would like to popupate "colO" into "lbl1" and "colOV" into "lbl2" inside "rptLabels" repeater
rptLabels.DataBind();

rptLabels2.DataSource = colT; //I would like to popupate "colT" into "lbl3" and "colTV" into "lbl4" inside "rptLabels2" repeater
rptLabels2.DataBind();

Answer 1

每行包含单独的列。你可以通过它访问它行[I] .ItemArray

Answer 2

您的DataTable可以array of muti-dimension的形式访问，除了最简单的访问行和列之外。例如：

myDt.Rows[0][0]; // access the first row and first column
myDt.Rows[0][1]; // access the first row and second column
myDt.Rows[0][2]; // access the first row and third column
myDt.Rows[1][0]; // access the second row and first column
myDt.Rows[1][1]; // access the second row and second column
myDt.Rows[1][2]; // access the second row and third column

如果需要，可以使用两个嵌套的for语句返回所有字段：

for(int i = 0;i < dtData.Rows.Count;i++)//travels the rows
{
     for(int j = 0;j < dtData.Rows.Count;j++)//travels the columns
     {
          var valueField = myDt.Rows[i][j];//access the value of current field
     }
}

如何使用不同的列名称和与列对应的值填充两个单独的中继器

2 个答案: