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"L'argument spécifié était en dehors de la plage de valeurs valides"

J'ajoute des lignes dynamiques dans le contrôle ASP.Net GridView avec des zones de texte. Mais je reçois le message d'erreur ci-dessous lorsque je clique sur le bouton Ajouter une nouvelle ligne .

L'argument spécifié était en dehors de la plage de valeurs valides. Nom du paramètre: index

Quelle pourrait être l'erreur?

Th code dans mon .aspx fichier 

<div id="Div1" class="divTable">
    <asp:gridview id="Gridview1" runat="server" autogeneratecolumns="false" gridlines="None"
        width="100%" height="100%">
            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <div class="divRow">
                            <div class="divColumn">
                                <div>
                                    <asp:Label ID="lbl1" runat="server" Text="Type Name" CssClass="formLable"></asp:Label>
                                </div>
                                <div>
                                    <asp:TextBox ID="txt_type" Width="200" runat="server" CssClass="txtbox"></asp:TextBox>
                                </div>
                                <span>
                                    <asp:RequiredFieldValidator ID="TYPE_NAME_VAL" runat="server" ControlToValidate="txt_type"
                                        ErrorMessage="Type is required." Display="Dynamic" CssClass="error"></asp:RequiredFieldValidator>
                                </span>
                            </div>
                            <div class="divColumn">
                                <div>
                                    <asp:Label ID="lbl2" runat="server" Text="Total" CssClass="formLable"></asp:Label>
                                </div>
                                <div>
                                    <asp:TextBox ID="txt_total" Width="200" runat="server" CssClass="txtbox"></asp:TextBox>
                                </div>
                            </div>
                        </div>
                        <div class="divRow">
                            <div class="divColumn">
                                <div>
                                    <asp:Label ID="lbl3" runat="server" Text="Max" CssClass="formLable"></asp:Label>
                                </div>
                                <div>
                                    <asp:TextBox ID="txt_max" Width="200" runat="server" CssClass="txtbox"></asp:TextBox>
                                </div>
                            </div>
                            <div class="divColumn">
                                <div>
                                    <asp:Label ID="lbl4" runat="server" Text="Min" CssClass="formLable"></asp:Label>
                                </div>
                                <div>
                                    <asp:TextBox ID="txt_min" Width="200" runat="server" CssClass="txtbox"></asp:TextBox>
                                </div>
                            </div>
                            <div class="divColumn">
                                <div>
                                    <asp:Label ID="lbl5" runat="server" Text="Rate" CssClass="formLable"></asp:Label>
                                </div>
                                <div>
                                    <asp:TextBox ID="txt_rate" Width="200" runat="server" CssClass="txtbox"></asp:TextBox>
                                </div>
                            </div>
                        </div>
                        <asp:Button ID="ButtonAdd" runat="server" Text="Add New Row" OnClick="ButtonAdd_Click"
                            CausesValidation="False" />
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:gridview>
</div>

Code C # de ButtonAdd_Click () 

if (ViewState["CurrentTable"] != null)
{
    DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
    DataRow drCurrentRow = null;
    if (dtCurrentTable.Rows.Count > 0)
    {
        for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
        {
            //extract the TextBox values
            TextBox box1 = (TextBox)Gridview1.Rows[rowIndex].Cells[1].FindControl("txt_type");
            TextBox box2 = (TextBox)Gridview1.Rows[rowIndex].Cells[2].FindControl("txt_total");
            TextBox box3 = (TextBox)Gridview1.Rows[rowIndex].Cells[3].FindControl("txt_max");
            TextBox box4 = (TextBox)Gridview1.Rows[rowIndex].Cells[4].FindControl("txt_min");
            TextBox box5 = (TextBox)Gridview1.Rows[rowIndex].Cells[5].FindControl("txt_rate");

            drCurrentRow = dtCurrentTable.NewRow();

            dtCurrentTable.Rows[i - 1]["Column1"] = box1.Text;
            dtCurrentTable.Rows[i - 1]["Column2"] = box2.Text;
            dtCurrentTable.Rows[i - 1]["Column3"] = box3.Text;
            dtCurrentTable.Rows[i - 1]["Column4"] = box4.Text;
            dtCurrentTable.Rows[i - 1]["Column5"] = box5.Text;

            rowIndex++;
        }
        dtCurrentTable.Rows.Add(drCurrentRow);
        ViewState["CurrentTable"] = dtCurrentTable;

        Gridview1.DataSource = dtCurrentTable;
        Gridview1.DataBind();
    }
}
else
{
    Response.Write("ViewState is null");
}
c#asp.netwebforms
4
Bishan

Il semble que vous essayiez de sortir 5 articles d'une collection contenant 5 articles. En regardant votre code, il semble que vous commenciez à la deuxième valeur de votre collection à la position 1. Les collections sont basées sur zéro, vous devriez donc commencer avec l'élément à l'index 0. Essayez ceci:

TextBox box1 = (TextBox)Gridview1.Rows[i].Cells[0].FindControl("txt_type");
TextBox box2 = (TextBox)Gridview1.Rows[i].Cells[1].FindControl("txt_total");
TextBox box3 = (TextBox)Gridview1.Rows[i].Cells[2].FindControl("txt_max");
TextBox box4 = (TextBox)Gridview1.Rows[i].Cells[3].FindControl("txt_min");
TextBox box5 = (TextBox)Gridview1.Rows[i].Cells[4].FindControl("txt_rate");
4
Terry

J'avais aussi le même problème car j'ai essayé d'utiliser la valeur 0 dans l'indexation non basée, c'est-à-dire en commençant par 1 et non par zéro

0
Syed Mohamed

essaye ça.

if (ViewState["CurrentTable"] != null)
            {
                DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
                DataRow drCurrentRow = null;
                if (dtCurrentTable.Rows.Count > 0)
                {
                    for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
                    {
                        //extract the TextBox values
                        TextBox box1 = (TextBox)Gridview1.Rows[i].Cells[1].FindControl("txt_type");
                        TextBox box2 = (TextBox)Gridview1.Rows[i].Cells[2].FindControl("txt_total");
                        TextBox box3 = (TextBox)Gridview1.Rows[i].Cells[3].FindControl("txt_max");
                        TextBox box4 = (TextBox)Gridview1.Rows[i].Cells[4].FindControl("txt_min");
                        TextBox box5 = (TextBox)Gridview1.Rows[i].Cells[5].FindControl("txt_rate");

                        drCurrentRow = dtCurrentTable.NewRow();
                        drCurrentRow["RowNumber"] = i + 1;

                        dtCurrentTable.Rows[i - 1]["Column1"] = box1.Text;
                        dtCurrentTable.Rows[i - 1]["Column2"] = box2.Text;
                        dtCurrentTable.Rows[i - 1]["Column3"] = box3.Text;
                        dtCurrentTable.Rows[i - 1]["Column4"] = box4.Text;
                        dtCurrentTable.Rows[i - 1]["Column5"] = box5.Text;

                        rowIndex++;
                    }
                    dtCurrentTable.Rows.Add(drCurrentRow);
                    ViewState["CurrentTable"] = dtCurrentTable;

                    Gridview1.DataSource = dtCurrentTable;
                    Gridview1.DataBind();
                }
            }
            else
            {
                Response.Write("ViewState is null");
            }
0
Furqan Ashraf